Remove uneeded #include

Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>

peek-remote.c

@@ -1,7 +1,6 @@
 #include "cache.h"
 #include "refs.h"
 #include "pkt-line.h"
-#include <sys/wait.h>
 
 static const char peek_remote_usage[] =
 "git-peek-remote [--exec=upload-pack] [host:]directory";

receive-pack.c

@@ -2,7 +2,6 @@
 #include "refs.h"
 #include "pkt-line.h"
 #include "run-command.h"
-#include <sys/wait.h>
 
 static const char receive_pack_usage[] = "git-receive-pack <git-dir>";